1,1

Table of n, a(n) for n=1..79.

(PARI) lista(nn) = {v = vector(nn); v[1] = 2; for (n=2, nn, f = factor(v[n-1]+n); v[n] = f[#f~, 1]; ); v; } \\ Michel Marcus, Aug 08 2014

Cf. A076560 (a(1)=1).

Sequence in context: A097611 A135376 A132850 * A132851 A293833 A146316

Adjacent sequences: A076558 A076559 A076560 * A076562 A076563 A076564

easy,nonn

Zak Seidov, Oct 19 2002

approved